The answer to the blank is b. republic. It is the type of government wherein people has the right to elect and vote who they choose the represent them. Historically, republic is different from democracy but now they are the same wherein the power is on the people under the government.
Muhammad Ail became famous because Ali's fame certainly came in steps. His amateur career finished with a Gold Medal performance at the 1960 Rome Olympics was the first actual Leap, there.
I would say that the answer is either C or B but i am not positive.